holograph film is laminated on all kinds of backing paper. holograph film is PET, BOPP, PVC ect. The backing paper has ivory board, duplex board with grey back,double copper paper,double offset paper, black paperboard, craft board paper, etc, gram weight is 80-400gsm, holographic film has BOPP holographic film, PET holographic film, the thickness is 16μm (PET holographic film), 19μm(BOPP ...